CN103144737A - Air resistance-reduced ship with front propelling plant and skeg course control system - Google Patents
Air resistance-reduced ship with front propelling plant and skeg course control system Download PDFInfo
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- CN103144737A CN103144737A CN2012101691205A CN201210169120A CN103144737A CN 103144737 A CN103144737 A CN 103144737A CN 2012101691205 A CN2012101691205 A CN 2012101691205A CN 201210169120 A CN201210169120 A CN 201210169120A CN 103144737 A CN103144737 A CN 103144737A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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Abstract
The invention discloses an air resistance-reduced ship with a front propelling plant and a skeg course control system. The major structure, common functions and basic characteristics of the conventional ship are remained, and a ship which is provided with the combined front propelling plant and the skeg course control system and reduces frictional resistance through air lubrication is specially designed. The course is controlled by thrust generated by a propeller in a skeg, a grid stepped multi-nest structure with a downward opening is arranged at the bottom, air is delivered into or discharged from nests timely through a control system and an air supply and discharge system, an isolation state between the water quantity in the nests and a hull bottom is regulated, frictional resistance is reduced, the stability of the ship is improved, a wave eliminating bow is matched with a bow propeller to change a water pressure field around the bow, and wave-making resistance is reduced. The air resistance-reduced ship with the front propelling plant and the skeg course control system has the advantages of better course control, stabilization performance and reduction of energy loss so as to effectively improve the dynamic performance and seagoing capability of the ship.
Description
Technical field
The present invention is mainly concerned with ship design and ship building field, refers in particular to a kind of method and apparatus for improving ship performance.
Background technology
In prior art, be widely used aspect shipping and have the stern screw propeller, the ship of stern rudder or water tank antirolling apparatus.There is following subject matter in existing ship:
1, the part energy of existing ship propeller thrust is transformed into the stern wave and loses, and the ship stern shape has a strong impact on the state that current enter screw propeller, causes the screw propeller work efficiency to reduce, engine power loss.
2, the existing ship course is controlled the current that produced by screw propeller and rudder and is united and complete, and screw propeller is when low-speed running, and current are less by the transverse force that rudder produces, and the ship's head control ability weakens at this moment.When the screw propeller high-speed operation, the failure phenomenon of rudder also may appear.Due to the effect of inertia of ship, the crewman can't in time find failure phenomenon, causes the course control lag.Simultaneously, the thrust of rudder makes again boats and ships to respect to the reversing sense drift that turns to, and is breakneck in this phenomenon of Emergency time appearance.
3, the water tank antirolling apparatus of most of boats and ships need to configure the large water pump of power consumption, and subtracting of producing of this device to shake moment responses speed slow, unsatisfactory to the control effect of Stability of Ship.
4, ship resistance is consuming a large amount of energy, improves ship resistance and is conducive to energy-conserving and environment-protective.
More than cause vessel motion cost height and the low problem of nevigation safety to be solved preferably always.
Summary of the invention
In order to improve the existing the problems referred to above of existing ship, the object of the invention is to: providing is a kind of novel ship that comprises stern fin formula course control system that the high preposition propelling unit of propulsion coefficient, course controller performance are good and the less air lubrication systems of friction drag.
The air drag reduction boats and ships of preposition propelling and the course control of stern fin formula are to produce by the screw propeller that stern fin inner motor drives the course that thrust changes boats and ships.The crewman operates the course operating handle of operator's compartment or both wings, and then adjusts the rotating speed of screw propeller by control housing, electronic or hydraulic efficiency pressure system, and it is strong that this device has the course control ability, the characteristics that turnability is good.Avoided the existing ship turnability poor, occur skew thrust or rudder when coming about and lost efficacy and cause the course to control the problems such as difficulty.
The air drag reduction boats and ships that preposition propelling and stern fin formula course are controlled be the bottom design of boats and ships a kind of have uncovered downwards, the stepped many nests structure of grid.Periphery and hull bottom that the stream line pattern excrescence that many nests structure is adjoined keel, bow stream line pattern excrescence and stern by port and starboard forms sealing consist of a nido jointly, be isolated into a plurality of closed regions by a plurality of vertical shroudings in the nido structure, the vertical shrouding that does not highly wait is arranged from the centre to two sides of a ship, and vertically the closed region is isolated by a plurality of horizontal trench structures again.All configure air ports on the horizontal trench structure of each insulating space of many nests structure, make many nests structure possess the air memory function.
The signal that the control housing of the air drag reduction boats and ships of preposition propelling and the course control of stern fin formula sends according to each sensor that distributes in nest, the data analysis such as the swing angle of boats and ships and rolling period are processed, and utilized output control air after analyzing and processing for heat-extraction system.
The air of the air drag reduction boats and ships of preposition propelling and the course control of stern fin formula can be supplied gas respectively or exhaust to nest inside for heat-extraction system, reaches the water yield in the adjustment nest, ensures that boats and ships are in the purpose of good operational configuration.
Air for heat-extraction system can be in good time to carrying out replenish air in nest, make hull bottom and water be in isolated condition.Due to the lubricating effect of air, can reduce Friction Resistance of Ships and can protect hull bottom again.When air compressor started, pressurized air entered high pressure tank, made high pressure tank can provide enough air fast to carrying out replenish air in nest.When the pressure of high pressure tank arrives safety value, pressure sensor starts, and by the control housing power cut-off, air compressor is quit work.
The air of high pressure tank is to enter in nest by air duct, hand valve, the electromagnetic valve of supplying gas, air scoop, and water is extruded, and makes water level arrival setting value in nest.At this moment, send signal by low sensors, close by control housing the electromagnetic valve of supplying gas, stop supplying gas in nest.During lower than setting value, air compressor is started working automatically when the pressure of high pressure tank.The effect of high pressure tank is to store a certain amount of air, avoids air compressor to start too frequent.
When ship shakes left, the rolling angle is when setting limit, and pressure sensor sends signal, and the operational configuration analysis system in control housing is opened right exhaust electromagnetism dish valve, and the boats and ships starboard begins exhaust, reduces starboard buoyancy, reduces rolling moment.Water surface arrival certain position in nest after exhaust, right high position sensor is sent signal, and high level switch disconnects, and the control housing circuit is closed right exhaust solenoid valve, stops exhaust.Due to effect of inertia, limit is shaken on boats and ships left sides, rolling from left to right afterwards, and low sensors is sent the unblanking electromagnetic valve of supplying gas to control housing, and supplying gas in the nest guarantees the air storage.
When ship shook to the right, the rolling angle was when setting limit, and pressure sensor sends signal, and the operational configuration analysis system in control housing is opened left bank pneumoelectric magnetic disc valve, and the boats and ships larboard begins exhaust, reduces larboard buoyancy, reduces rolling moment.Water surface arrival certain position in nest after exhaust, left high position sensor is sent signal, and high level switch disconnects, and the control housing circuit is closed left bank pneumoelectric magnet valve, stops exhaust.Due to effect of inertia, limit is shaken on the boats and ships right sides, rolling from right to left afterwards, and low sensors is sent the unblanking electromagnetic valve of supplying gas to control housing, and supplying gas in the nest guarantees the air storage.
When setting limit, control housing is namely closed the electromagnetism dish valve of supplying gas, and stops supplying gas when ship pitching angle.
The air drag reduction boats and ships of preposition propelling and the course control of stern fin formula are when suspending, and air in good time to the additional air in nest inside, guarantees that hull bottom and water are in isolated condition for heat-extraction system, and air can reach the effect of protection hull bottom, avoids marine life to the destruction of hull bottom.When air compressor starts, with air pressure indentation high pressure tank, make high pressure tank have enough air can fast speed to nest inside carrying out replenish air.When the pressure of high pressure tank arrived safety value, pressure sensor started and by the control housing power cut-off, air compressor is quit work.The air of high pressure tank enters nest inside by air duct, hand valve, electromagnetic valve, air scoop, and the water in nest is extruded, and the water surface is during to setting value, and low sensors is sent signal, closes by the circuit of control housing the electromagnetic valve of supplying gas, and stops supplying gas in nest.
The F/F of the air drag reduction boats and ships of preposition propelling and the course control of stern fin formula drives preposition transmission shaft by drive gear casing, and preposition transmission shaft passes bulbous bow and extends to outside hull, and screw propeller is fixed on preposition transmission shaft front end.According to the bulbous bow of not shipmate type design and the relative position of bulbous bow and bow propeller, make the water flow pressure field of water flow pressure field that bow propeller produces forwardly and rear propeller current and bulbous bow formation jointly improve the wave making resistance of boats and ships.Simultaneously, preposition engine installation has also been avoided the degradation of energy that traditional propulsion mode produces.
Description of drawings
Fig. 1 has boats and ships inclined shaft mapping of the present invention
Fig. 2 has outboard profile of the present invention
Fig. 3 has boats and ships part sectional view of the present invention
Fig. 4 is the A-A section-drawing of Fig. 3
Fig. 5 is the systematic schematic diagram of the air drag reduction boats and ships of preposition propelling and the course control of stern fin formula
Description of reference numerals:
Hull 1 stern fin 2 motors 3
Screw propeller 4 course operating handle 5 control housings 6
At the bottom of electronic or hydraulic efficiency pressure system 7 nests, 8 adjoin keel 9
The bow stream line pattern excrescence 10 vertical shroudings 12 of stern stream line pattern excrescence 11
Total electromagnetic valve 17 high pressure tanks 18 of air compressor 16
The specific embodiment:
Below will describe embodiments of the present invention based on accompanying drawing.
As Fig. 1 and shown in Figure 5, the motor 3 that is arranged in stern fin 2 drives screw propeller 4 rotations, and the crewman operates the course operating handle 5 of operator's compartment or both wings, by control housing 6 and electronic or hydraulic efficiency pressure system 7 adjustment motor 3 rotating speeds.
As Fig. 1, Fig. 2 and shown in Figure 4, part hull bottom as nest at the bottom of 8, adjoin the periphery that keel 9, bow stream line pattern excrescence 10 and stern stream line pattern excrescence 11 form sealing, this peripheral with 8 form the nest structures at the bottom of nest.The nest structure uncovered downwards.Nest inside is isolated into a plurality of closed regions by a plurality of vertical shroudings 12, and the vertical shrouding 12 that does not highly wait is arranged from the centre to two sides of a ship.Vertically the closed region is by a plurality of horizontal trench structure 13 isolation, and laterally trench structure 13 has air scoop 14.
As Fig. 1 or shown in Figure 5, the signal that control housing 6 sends according to each sensor that distributes in nest, the data analysis such as the swing angle of boats and ships and rolling period are processed, by the output control air of analyzing and processing for heat-extraction system to supplying gas respectively and exhaust in nest.Air for heat-extraction system in good time to replenishing air in nest, the isolated condition of assurance hull bottom and water.When air compressor 16 startups, pressurized air enters high pressure tank 18, and the pressure of high pressure tank 18 arrives setting value, control housing 6 power cut-offs 15, and air compressor 16 quits work.The air of high pressure tank 18 is to enter in nest by air duct 19, hand valve 20, the electromagnetic valve 21 of supplying gas, the electromagnetic valve 22 of supplying gas, air scoop 14.When the water surface in nest reached desired location, low sensors 28 or low sensors 29 were sent signal, close by control housing 6 electromagnetic valve 21 of supplying gas, and supply gas to stopping in nest.During lower than setting value, air compressor 16 starts when the pressure of high pressure tank 18.
When ship shook left, the rolling angle was greater than setting limit, and pressure sensor 26 and pressure sensor 27 send signal, and control housing 6 is opened right exhaust electromagnetism dish valve 24, and the boats and ships starboard begins exhaust.After exhaust, the water surface arrives certain position, and right high position sensor 31 is sent signal, and high level switch 33 disconnections, and control housing 6 circuit are closed right exhaust solenoid valve 24, and exhaust stops.Due to effect of inertia, limit is shaken on boats and ships left sides, and ship begins rolling from left to right afterwards, and low sensors 29 is sent signal, and control housing 6 is opened supply gas electromagnetic valve 21 and the electromagnetic valve 22 of supplying gas, and the beginning starboard is supplied gas.
When ship shook to the right, the rolling angle was greater than setting limit, and pressure sensor 26 and pressure sensor 27 send signal, and control housing 6 is opened left bank pneumoelectric magnetic disc valve 23, and the boats and ships larboard carries out exhaust.After exhaust, the water surface arrives certain position, and left high position sensor 30 is sent signal, and high level switch 32 disconnections, and control housing 6 circuit are closed left bank pneumoelectric magnet valve 23, and exhaust stops.Due to effect of inertia, limit is shaken on the boats and ships right sides, and ship begins rolling from right to left afterwards, and low sensors 28 is sent signal, and control housing 6 is opened supply gas electromagnetic valve 21 and the electromagnetic valve 22 of supplying gas, and the beginning larboard is supplied gas.
Greater than setting limit, control housing 6 is closed the electromagnetism dish valve 21 of supplying gas when ship pitching angle, and supplying gas stops.
As Fig. 1 and shown in Figure 5, when suspending, air for heat-extraction system in good time to replenishing air in nest, guarantee that hull bottom and water are in isolated condition.When air compressor 16 startups, pressurized air enters high pressure tank 18, and when the pressure arrival setting value of high pressure tank 18, control housing 6 power cut-offs 15 stop air compressor 16 work.The air of high pressure tank 18 is to enter in nest by air duct 19, hand valve 20, the electromagnetic valve 21 of supplying gas, supply gas electromagnetic valve 22 and air scoop 14.The water surface in nest reaches desired location, and low sensors 28 and 29 is sent signal and closed by control housing 6 electromagnetic valve 21 of supplying gas, and supplies gas to stopping in nest.
As shown in Figures 2 and 3, F/F 35 drive gear casings 36 drive preposition transmission shaft 37, and preposition transmission shaft 37 extends to outside hull by bearing and the shaft seal in bulbous bow 38, and bow propeller 39 is fixed on preposition transmission shaft 37 front ends.
Claims (5)
1. the air drag reduction boats and ships controlled of a preposition propelling and stern fin formula course, it is characterized in that: hull (1) is arranged, stern fin (2), motor (3), screw propeller (4), course operating handle (5), control housing (6), electronic or hydraulic efficiency pressure system (7), at the bottom of nest (8), adjoin keel (9), bow stream line pattern excrescence (10), stern stream line pattern excrescence (11), vertical shrouding (12), horizontal trench structure (13), air scoop (14), power supply (15), air compressor (16), total electromagnetic valve (17), high pressure tank (18), air duct (19), hand valve (20), the electromagnetic valve (21 of supplying gas, 22), exhaust solenoid valve (23, 24, 25), pressure sensor (26, 27), low sensors (28, 29), high position sensor (30, 31), high level switch (32, 33, 34), F/F (35), drive gear casing (36), preposition transmission shaft (37), wave absorption bow (38) and bow propeller (39).The feature that the present invention is different from the existing ship technology is that the stern fin formula directional control gear that is comprised of stern fin (2), motor (3), screw propeller (4), course operating handle (5), control housing (6), electronic or hydraulic efficiency pressure system (7) and power supply (15) is arranged.by control housing (6), at the bottom of nest (8), adjoin keel (9), bow stream line pattern excrescence (10), stern stream line pattern excrescence (11), vertical shrouding (12), horizontal trench structure (13), air scoop (14), power supply (15), air compressor (16), total electromagnetic valve (17), high pressure tank (18), air duct (19), hand valve (20), the electromagnetic valve (21 of supplying gas, 22), exhaust solenoid valve (23,24,25), pressure sensor (26,27), low sensors (28,29), high position sensor (30,31) and high level switch (32,33,34) air that forms is for heat-extraction system.Form preposition propelling unit by F/F (35), drive gear casing (36), preposition transmission shaft (37), wave absorption bow (38) and bow propeller (39).
2. stern fin formula directional control gear described according to claims 1, it is characterized in that: stern fin (2), motor (3) and screw propeller (4) are positioned at the underwater of hull (1) stern, and motor (3) axle is perpendicular to swollen elevation profile, motor (3) is fixed in stern fin (2), stern fin (2) forms an integral body with hull (1) stern, and course operating handle (5) is by control housing (6) and electronic or hydraulic efficiency pressure system (7) control motor (3) running.
3. air drag reduction described according to claims 1, it is characterized in that: adjoin keel (9), bow stream line pattern excrescence (10) and stern stream line pattern excrescence (11) form the periphery of sealing, the periphery of this sealing and part hull bottom as nest at the bottom of (8) form the nest structure, the nest structure is uncovered downwards, be isolated into a plurality of closed regions by a plurality of vertical shroudings (12) in the nest structure, the vertical shrouding (12) that does not highly wait is arranged from the centre to two sides of a ship, vertically the closed region is isolated by a plurality of horizontal trench structures (13), laterally all have air scoop (14) on trench structure (13).By control housing (6), air compressor (16), total electromagnetic valve (17), high pressure tank (18), air duct (19), hand valve (20), the electromagnetic valve (21 of supplying gas, 22), exhaust solenoid valve (23,24,25), pressure sensor (26,27), low sensors (28,29), high position sensor (30,31), high level switch (32,33,34) and air scoop (14) form air for heat-extraction system.
4. according to claims 1 or 3, it is characterized in that: multiple sensors is distributed in the nest structure, comprising pressure sensor (26,27), low sensors (28,29), high position sensor (30,31), high level switch (32,33,34), every kind of sensor is more than two, their signal is controlled air for heat-extraction system by control housing, in good time to supplying gas in nest and exhaust, reaches and adjusts the water yield in nest.
5. preposition propelling unit described according to claims 1, it is characterized in that: the F/F (35) that is arranged near ship bow part drives preposition transmission shaft (37) by drive gear casing (36), preposition transmission shaft (37) connects wave absorption bow (38) and extends to outside hull, bow propeller (39) is arranged on preposition transmission shaft (37), and the quantity of preposition propelling unit is one to three cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210169120.5A CN103144737B (en) | 2012-05-29 | 2012-05-29 | Air resistance-reduced ship with front propelling plant and skeg course control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210169120.5A CN103144737B (en) | 2012-05-29 | 2012-05-29 | Air resistance-reduced ship with front propelling plant and skeg course control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103144737A true CN103144737A (en) | 2013-06-12 |
| CN103144737B CN103144737B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210169120.5A Expired - Fee Related CN103144737B (en) | 2012-05-29 | 2012-05-29 | Air resistance-reduced ship with front propelling plant and skeg course control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102602504A (en) * | 2011-12-12 | 2012-07-25 | 李宏生 | Integrated ship composed of three ships |
| CN104015870A (en) * | 2014-06-16 | 2014-09-03 | 石狮市宏泰船舶修造有限公司 | Energy-saving fishing boat hull |
| CN108001609A (en) * | 2017-11-16 | 2018-05-08 | 张善沐 | A kind of device for reducing steamer ship resistance |
| CN113501099A (en) * | 2021-08-26 | 2021-10-15 | 哈尔滨工程大学 | Pitching-reducing channel propeller |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3595191A (en) * | 1968-10-11 | 1971-07-27 | John Wakelam Grundy | Ships and boats |
| JPH10100985A (en) * | 1996-10-01 | 1998-04-21 | 信也 ▲高▼原 | Ship bottom structure for reducing water frictional resistance of ship |
| CN1918032A (en) * | 2004-02-13 | 2007-02-21 | 科内利斯·阿里·阿德里安努斯·布恩 | Vessel with air chambers to reduce the resistance between the hull and the water |
| CN101065290A (en) * | 2004-11-29 | 2007-10-31 | 瓦特西拉芬兰有限公司 | Propulsion system of marine vessel |
| CN101074047A (en) * | 2007-04-22 | 2007-11-21 | 北流市小古乖工艺品店 | Economical ship |
| CN101891006A (en) * | 2010-06-29 | 2010-11-24 | 中国船舶重工集团公司第七〇二研究所 | High-speed rounded bilge type boat utilizing air cavity to reduce resistance |
| CN102039982A (en) * | 2009-10-20 | 2011-05-04 | 小池造船海运株式会社 | Ballast-free ship |
-
2012
- 2012-05-29 CN CN201210169120.5A patent/CN103144737B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3595191A (en) * | 1968-10-11 | 1971-07-27 | John Wakelam Grundy | Ships and boats |
| JPH10100985A (en) * | 1996-10-01 | 1998-04-21 | 信也 ▲高▼原 | Ship bottom structure for reducing water frictional resistance of ship |
| CN1918032A (en) * | 2004-02-13 | 2007-02-21 | 科内利斯·阿里·阿德里安努斯·布恩 | Vessel with air chambers to reduce the resistance between the hull and the water |
| CN101065290A (en) * | 2004-11-29 | 2007-10-31 | 瓦特西拉芬兰有限公司 | Propulsion system of marine vessel |
| CN101074047A (en) * | 2007-04-22 | 2007-11-21 | 北流市小古乖工艺品店 | Economical ship |
| CN102039982A (en) * | 2009-10-20 | 2011-05-04 | 小池造船海运株式会社 | Ballast-free ship |
| CN101891006A (en) * | 2010-06-29 | 2010-11-24 | 中国船舶重工集团公司第七〇二研究所 | High-speed rounded bilge type boat utilizing air cavity to reduce resistance |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102602504A (en) * | 2011-12-12 | 2012-07-25 | 李宏生 | Integrated ship composed of three ships |
| CN104015870A (en) * | 2014-06-16 | 2014-09-03 | 石狮市宏泰船舶修造有限公司 | Energy-saving fishing boat hull |
| CN104015870B (en) * | 2014-06-16 | 2016-11-16 | 石狮市宏泰船舶修造有限公司 | A kind of energy-conservation fishing boat body |
| CN108001609A (en) * | 2017-11-16 | 2018-05-08 | 张善沐 | A kind of device for reducing steamer ship resistance |
| CN113501099A (en) * | 2021-08-26 | 2021-10-15 | 哈尔滨工程大学 | Pitching-reducing channel propeller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103144737B (en) | 2015-06-17 |
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